$503+ Cheap flights from Seattle (SEA) to Asuncion (ASU)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/10. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ASU
May 29 — Jun 51
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Asuncion with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Seattle to Asuncion
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Cheapest flights from Seattle to AsuncionExplore the most affordable flight options available from Seattle to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
Explore the most affordable flight options available from Seattle to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 29, 2026.
This Expedia deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/289:30 am
SEA
- ASU
2 stops40h 35m
Multiple Airlines
Mon 10/128:10 am
ASU
- SEA
2 stops39h 50m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$962
This KAYAK deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:20 am
SEA
- ASU
2 stops30h 20m
LATAM Airlines
Thu 8/2011:05 am
ASU
- SEA
2 stops29h 53m
LATAM Airlines
Deal found 4/25![LATAM Airlines logo]()
$1,163
This LATAM Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2410:05 am
SEA
- ASU
2 stops27h 35m
LATAM Airlines
Sat 6/278:10 am
ASU
- SEA
2 stops19h 49m
LATAM Airlines
Deal found 4/25![LATAM Airlines logo]()
$1,171
This Copa Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:33 pm
SEA
- ASU
2 stops31h 15m
Copa Airlines
Fri 8/211:47 am
ASU
- SEA
2 stops24h 09m
Copa Airlines
Deal found 4/24![Copa Airlines logo]()
$1,174
This Ovago deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:51 pm
SEA
- ASU
2 stops25h 06m
Copa Airlines
Fri 8/216:33 am
ASU
- SEA
2 stops19h 23m
Copa Airlines
Deal found 4/25![Copa Airlines logo]()
$1,182
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:00 pm
SEA
- ASU
2 stops26h 57m
United Airlines
Thu 8/206:33 am
ASU
- SEA
2 stops42h 48m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,190
This KAYAK deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/98:00 am
SEA
- ASU
2 stops29h 40m
LATAM Airlines
Wed 8/1911:05 am
ASU
- SEA
2 stops38h 54m
LATAM Airlines
Deal found 4/25![LATAM Airlines logo]()
$1,215
This LATAM Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:00 pm
SEA
- ASU
2 stops21h 55m
LATAM Airlines
Sun 10/1811:05 am
ASU
- SEA
2 stops38h 53m
LATAM Airlines
Deal found 4/28![LATAM Airlines logo]()
$1,223
This LATAM Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:40 pm
SEA
- ASU
2 stops37h 25m
Multiple Airlines
Mon 6/298:10 am
ASU
- SEA
3 stops56h 23m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,247
This Travelocity deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:39 pm
SEA
- ASU
2 stops25h 01m
Multiple Airlines
Mon 6/298:10 am
ASU
- SEA
2 stops19h 49m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,253
This FlightHub deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/229:18 pm
SEA
- ASU
2 stops28h 47m
Multiple Airlines
Sun 6/288:10 am
ASU
- SEA
2 stops32h 19m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,254
Best flights from Seattle to AsuncionDiscover carefully curated flight deals from Seattle to Asuncion that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
Discover carefully curated flight deals from Seattle to Asuncion that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
This Copa Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/123:33 pm
SEA
- ASU
2 stops31h 15m
Copa Airlines
Fri 8/211:47 am
ASU
- SEA
2 stops24h 09m
Copa Airlines
Deal found 4/24![Copa Airlines logo]()
$1,174
This LATAM Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:00 pm
SEA
- ASU
2 stops21h 55m
LATAM Airlines
Sun 10/1811:05 am
ASU
- SEA
2 stops38h 53m
LATAM Airlines
Deal found 4/28![LATAM Airlines logo]()
$1,223
This LATAM Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:40 pm
SEA
- ASU
2 stops37h 25m
Multiple Airlines
Mon 6/298:10 am
ASU
- SEA
3 stops56h 23m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,247
This United Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:56 pm
SEA
- ASU
2 stops25h 29m
United Airlines
Sat 8/226:33 am
ASU
- SEA
3 stops35h 49m
United Airlines
Deal found 4/24![United Airlines logo]()
$1,390
This Expedia deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1011:52 pm
SEA
- ASU
2 stops24h 48m
Multiple Airlines
Wed 6/1711:25 am
ASU
- SEA
2 stops50h 51m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,270
This Travelocity deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:40 pm
SEA
- ASU
2 stops37h 25m
Multiple Airlines
Mon 6/298:10 am
ASU
- SEA
3 stops56h 23m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,273
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/145:00 pm
SEA
- ASU
2 stops32h 25m
United Airlines
Wed 8/196:33 am
ASU
- SEA
2 stops34h 07m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,472
This Priceline deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1210:20 pm
SEA
- ASU
2 stops26h 20m
Multiple Airlines
Fri 6/198:10 am
ASU
- SEA
2 stops29h 55m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$1,277
This United Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:56 pm
SEA
- ASU
2 stops25h 29m
United Airlines
Sun 8/236:33 am
ASU
- SEA
3 stops35h 49m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,482
This LATAM Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2310:20 pm
SEA
- ASU
2 stops27h 45m
Multiple Airlines
Mon 6/298:10 am
ASU
- SEA
2 stops38h 53m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,314
Last-minute flights from Seattle to AsuncionDiscover last-minute flight deals from Seattle to Asuncion. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Asuncion. Data last updated April 29, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/37:35 am
SEA
- ASU
2 stops30h 05m
Multiple Airlines
Sat 5/98:10 am
ASU
- SEA
2 stops32h 51m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,328
This Expedia deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1711:30 pm
SEA
- ASU
2 stops49h 10m
Multiple Airlines
Mon 6/2911:25 am
ASU
- SEA
2 stops31h 24m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,319
This LATAM Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:40 pm
SEA
- ASU
2 stops37h 25m
Multiple Airlines
Mon 6/298:10 am
ASU
- SEA
3 stops56h 23m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,247
One-way flights from Seattle to AsuncionSearch for one-way flight options from Seattle to Asuncion. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
Search for one-way flight options from Seattle to Asuncion. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Trip.com deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1010:30 am
SEA
- ASU
3 stops38h 10m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1811:03 am
SEA
- ASU
2 stops33h 05m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$581
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/237:41 pm
SEA
- ASU
3 stops30h 24m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$610
This FlightHub deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/611:15 pm
SEA
- ASU
2 stops25h 25m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$689
This Mytrip deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:00 pm
SEA
- ASU
3 stops27h 05m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$705
Find flight deals from Seattle to Asuncion
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Asuncion (ASU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $962 (Expedia) |
One-way from | $503 (Trip.com) |
Popular in | May |
Cheapest in | September |
Average price | $943 |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Asuncion that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2026.
Use the filters below to find and compare flights from Seattle to Asuncion that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Wed 8/12
3:33 pm-2:48 am
2 stops31h 15m
Asuncion Silvio Pettirossi
Fri 8/21
1:47 am-9:56 pm
2 stops24h 09m
$1,174
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Wed 10/14
10:00 pm-11:55 pm
2 stops21h 55m
Asuncion Silvio Pettirossi
Sun 10/18
11:05 am-9:58 pm
2 stops38h 53m
$1,223
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Mon 5/18
12:40 pm-6:05 am
2 stops37h 25m
Asuncion Silvio Pettirossi
Mon 6/29
8:10 am-12:33 pm
3 stops56h 23m
$1,247
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Wed 6/10
11:52 pm-4:40 am
2 stops24h 48m
Asuncion Silvio Pettirossi
Wed 6/17
11:25 am-10:16 am
2 stops50h 51m
$1,270
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Mon 6/1
12:40 pm-6:05 am
2 stops37h 25m
Asuncion Silvio Pettirossi
Mon 6/29
8:10 am-12:33 pm
3 stops56h 23m
$1,273
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Fri 6/12
10:20 pm-4:40 am
2 stops26h 20m
Asuncion Silvio Pettirossi
Fri 6/19
8:10 am-10:05 am
2 stops29h 55m
$1,277
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Tue 6/23
10:20 pm-6:05 am
2 stops27h 45m
Asuncion Silvio Pettirossi
Mon 6/29
8:10 am-7:03 pm
2 stops38h 53m
$1,314
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Wed 8/12
11:56 pm-5:25 am
2 stops25h 29m
Asuncion Silvio Pettirossi
Sat 8/22
6:33 am-2:22 pm
3 stops35h 49m
$1,390
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Fri 8/14
5:00 pm-5:25 am
2 stops32h 25m
Asuncion Silvio Pettirossi
Wed 8/19
6:33 am-12:40 pm
2 stops34h 07m
$1,472
SeattleAsuncion
SEA - ASU
SEAASU
Seattle/Tacoma Intl
Sat 8/15
11:56 pm-5:25 am
2 stops25h 29m
Asuncion Silvio Pettirossi
Sun 8/23
6:33 am-2:22 pm
3 stops35h 49m
$1,482
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Seattle to Asuncion
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Asuncion in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Seattle-Asuncion flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Asuncion flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Asuncion flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Asuncion flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Asuncion flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Asuncion
Have a flexible travel schedule? Discover the best time to fly to Asuncion from Seattle with our price prediction graph.
SEA-ASU
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Asuncion
Reviews of airlines servicing Asuncion
Get insights into the airlines that provide service to Asuncion. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Asuncion. Reviews last updated April 29, 2026.
Peruse reviews from past customers who have flown with LATAM Airlines from Seattle to Asuncion to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.7
Comfort
7.3
Boarding
7.5
Entertainment
7.0
Crew
8.0
Overall
7.4
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Food
6.7
Comfort
7.3
Boarding
7.5
Entertainment
7.0
Crew
8.0
Overall
7.4
Reviews
1 / 20
8.0
ExcellentLUIS JOSE,Oct 2025
LIM - AEP
Related info for your journey
Find useful and relevant information for your journey from Seattle to Asuncion. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Other flights to Asuncion
Explore flights to Asuncion departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 29, 2026.
Complete your trip
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Find flights from Seattle to Asuncion, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Seattle and Asuncion flights
Browse other Seattle and Asuncion flight options. Last updated on April 29, 2026.
Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on April 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Seattle to Asuncion
Discover the top airline that operate flights from Seattle to Asuncion. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$729 | Average$1,015 | FlexibilityNo cancel fee | On-time81% |